在带有 T 型槽的机床上,可以采用如图所示的夹具来夹紧工件。定位架2套在螺杆1上,在定位架2的颈部螺纹上拧有套管3,套管3的轴肩用来支承压板4,并使压板4能作摆动。杠杆7装在定位架2上,并能绕小轴摆动圆头螺杆5的圆形头部和杠杆7上的凹槽相嵌合,在杠杆7上制有螺纹槽,其螺纹螺距和螺杆1的螺距相同,以保证两者啮合。 On machines with a T-slot, the workpiece can be clamped using the fixture shown. The positioning frame 2 is sleeved on the screw rod 1, a sleeve 3 is screwed on the neck thread of the positioning frame 2, the shoulder of the sleeve 3 is used for supporting the pressing plate 4 and the pressing plate 4 can swing. The lever 7 is mounted on the positioning frame 2 and is capable of swinging about a circular head of the round head screw 5 about a small axis to engage with a groove on the lever 7. A thread groove is formed in the lever 7 with a thread pitch and a screw thread 1 The same pitch, to ensure that the two meshing.